Figure 4 - available via license: Creative Commons Attribution 3.0 Unported
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Color-coded transmission map of the unpolarized enhancement transmission filter as a function of period, the other parmeters are the same as those in figure 3.
Source publication
Enhancement transmission filter using a two-dimensional (2-D) subwavelength periodic membrane is proposed. It can be found that strong refractive-index modulation of the silicon periodic membrane can support the excitation of multiple guided-mode resonances (GMRs) in a reflection band, and every GMR relates a transmission peak on its edge, therefor...
Contexts in source publication
Context 1
... the process of changing all parameters, it's found that the period value changes almost linearly with the position of the transmission peak. Figure 4 is the color-coded transmission map of the unpolarized enhancement transmission filter as a function of period, the other parameters are the same as those in figure 3. As shown in figure 4, in the wavelength range of 1250 nm to 1330nm, the linear full coverage of the transmission peak can be obtained only by adjusting the period in a suitable range from 0.6 μm to 0.65 μm. ...
Context 2
... 4 is the color-coded transmission map of the unpolarized enhancement transmission filter as a function of period, the other parameters are the same as those in figure 3. As shown in figure 4, in the wavelength range of 1250 nm to 1330nm, the linear full coverage of the transmission peak can be obtained only by adjusting the period in a suitable range from 0.6 μm to 0.65 μm. The white dash line indicates the position of the transmission peak which displays a redshift with the increase of period, and the bandwidth of the transmission peak remains 15 nm, two flat low sidebands distributed on both sides of the transmission peak are also maintained. ...
Context 3
... white dash line indicates the position of the transmission peak which displays a redshift with the increase of period, and the bandwidth of the transmission peak remains 15 nm, two flat low sidebands distributed on both sides of the transmission peak are also maintained. The analytic relationship between λpeak and period in a suitable range can be obtained by fitting the white dash line in figure 4, that is: ...
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